70-30 Electronic Grade Cupro Nickel Modified
A Copper Nickel Alloy
Application
Electronics, microwave condenser tube industry, wave guides.
Chemical Composition (Nominal %)
65 Cu min, 23 - 33 Ni, 0.5 Fe max
Physical Characteristics
Density
.323 lb/in³
Tempers
| Rockwell 30T | Grain Size (nominal) | Tensile KSI* | |
| Annealed | 31 - 46 40 - 58 |
0.035 mm 0.015 mm |
|
| ¼ hard | 61 - 71 | 58 - 72 | |
| ½ hard | 67 - 74 | 66 - 80 | |
| hard | 72 - 76 | 75 - 88 | |
| extra hard | 73 - 77 | 80 - 92 | |
| spring | 74 - 77 | 84 - 94 |
Sheet/Coil Sizes
Thickness
.002" - 0.500"
Width in coil
8.00" max
Width in length
14.00" max